This example demonstrates the foundational SVG circle element, rendered directly in an HTML document without external libraries. It shows how a single circle is positioned using the `cx` and `cy` attributes and sized with the `r` attribute, all within an inline `<svg>` tag. The visualization serves as a minimal starter template for SVG graphics, with the source code written in plain HTML and the rendering occurring directly in the browser’s SVG engine. No JavaScript or data-binding frameworks are involved, keeping the example purely static.